Saturday, June 03, 2006

Study says do not underestimate the pain factor

The results of a study published in the Journal of Thoracic and Cardiac Surgery shows postoperative pain in patients who have had CABG surgery is significant.

Prevalence, characteristics, and predictors of chronic nonanginal postoperative pain after a cardiac operation: A cross-sectional study

  • Nonanginal chronic postoperative pain affected 23% of patients.

  • Eighty percent of them had pain 1 or more days per week.

  • The worst and usual pain intensities during the week preceding the survey reached moderate to severe levels (≥4/10) in more than half of the patients.

  • Thirty-one percent of the patients with chronic postoperative pain had taken analgesic pain medication during that week.

  • During the same period, pain interfered significantly (≥4/10) with various aspects of patients' daily life (eg, general activity level: 39.1%, sleep: 36.7%).

  • When patients with and without chronic postoperative pain were compared, the former group had significantly higher levels of anxiety and depression, and they perceived their health-related quality of life as more compromised.

  • Multivariate logistic regression analysis revealed that greater analgesic needs in the first few days postoperatively were associated with an increased risk of chronic postoperative pain.

  • The only other significant factor was the time elapsed from surgical intervention to survey: the longer it was, the less likely the patients were to report chronic postoperative pain.

CONCLUSION: The prevalence, severity, and effect of chronic postoperative pain after cardiac surgery should not be underestimated. Longitudinal prospective studies are needed to further evaluate risk factors, including inadequate postoperative pain relief in the acute period.

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